共射极放大器的输入极是().A.发射极 B.基极 C.集电极 D.公共地端

题型:单项选择题

问题:

共射极放大器的输入极是().

A.发射极

B.基极

C.集电极

D.公共地端

考点:民用航空器维修执照考试M4模拟电子技术基础M4模拟电子技术基础题库
题型:单项选择题

起崩解剂作用的是()。

A.乙酰水杨酸 250g

B.乳糖 250g

C.10%淀粉浆 适量

D.滑石粉 15g

E.羧甲基淀粉钠 适量制成500片

题型:单项选择题

患者,男,46岁,左上后牙牙龈突然肿胀两天。两周前曾在牙周科刚结束龈下刮治治疗,急诊诊断为急性牙周脓肿,脓肿形成最可能的原因是()

A.牙髓炎症

B.食物嵌塞

C.口腔卫生保持不良

D.牙周袋深处牙石未刮净

E.创伤

题型:单项选择题

         name is Bob,            is eleven years old.

A.He, His

B.He, He

C.His, His

D.His, He

题型:单项选择题

根据句意和提示写单词,或用所给单词的适当形式完成句子。(15分)

小题1: When you come to Yancheng, you can enjoy the BRT(快速公交). It’s ________ (舒适)

and fast. How fast our city is developing!

小题2: Many people don’t want to live in Tokyo(东京) because of the Nuclear(核) _________

(污染).

小题3: This is his ______ (九) year in Sheyang. He loves living here. He loves everything here.

小题4: We are looking forward to his __________ (到达). He is a famous singer.

小题5:China’s __________ (人口) is becoming aging (老龄化的). We must take action to

prevent it.

小题6:—What’s the w__________ like today?  —The radio says it’s sunny.

小题7: If you read more, you will get more k__________. Do you believe it?

小题8: Boys like watching ball games very much, e__________ the NBA. Those basketball

players are really wonderful.

小题9:. When you go for a picnic, remember “S_______ is first. Keep away from the dangerous

places. ”

小题10: Everyone must know the i__________ of learning English. It’s used the most widely in

the world now.

小题11: Many __________ (mouse) destroyed the crops near the village. The farmers were

catching them everywhere.

小题12:He is __________ (true) sorry that he failed to pass the exam. But I don’t believe him,

and you?

小题13:Millie doesn’t dance as __________ (beautiful) as her sister. She hasn’t practice it for a

long time.

小题14: I would like Liu Qian to teach _________ (we) how to play magic. We admire him very

much. He is my hero.

小题15: Juan Antonio Samaranch(萨马兰奇)’s __________ (die) was a great loss to the whole

world. People loved him very much all over the world.

题型:单项选择题

患者女性,36岁。孕4产0,孕32周,人流2次, * * 少许流血4天,无腹痛。体检:Bp110/70mmHg,HR80次/分,子宫软,无压痛,胎头高浮,胎心140次/分,耻骨联合上方可闻及胎盘杂音。

最恰当的处理是()

A.立即人工破膜

B.立即终止妊娠

C.缩宫素引产

D.预防感染,密切观察

E.人工破膜及缩宫素静脉滴注

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